CN109341743A - A kind of multipurpose ballistic motion generating device - Google Patents
A kind of multipurpose ballistic motion generating device Download PDFInfo
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- CN109341743A CN109341743A CN201811462304.4A CN201811462304A CN109341743A CN 109341743 A CN109341743 A CN 109341743A CN 201811462304 A CN201811462304 A CN 201811462304A CN 109341743 A CN109341743 A CN 109341743A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/62—Manufacturing, calibrating, or repairing devices used in investigations covered by the preceding subgroups
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Abstract
A kind of multipurpose ballistic motion generating device disclosed by the invention, belongs to dynamic mechanical field of measuring techniques.The present invention uses horizontal occurring mode, including electric cylinders, linear guide, 1# table top, air-bearing, 2# table top braking guide rail, damper, 2# table top, 3# table top, cushion, air bearing tup, 3# table top to install guide rail, limited location fork；Electric cylinders are the exciting units of generating device, for generating movement initial velocity；1# table top, 2# table top, 3# table top, air bearing tup are moving component and corrected sensor installation pedestal；Linear guide, installation guide rail are movement guide mechanism；Damper, braking guide rail, limited location fork, cushion are movement buffering and limiting mechanism.The present invention includes two kinds of operating modes, and one kind is impact velocity, impact displacement emergence pattern, and one kind is impact acceleration emergence pattern.The present invention can provide calibration ballistic motion pumping signal for three kinds of shock transducers, meet the demand of the dynamic calibration for acceleration transducer, velocity sensor and displacement sensor.
Description
Technical field
It can be realized transient Displacements, instantaneous velocity, instantaneous acceleration three kinds of pick up calibrations the present invention relates to a kind of
Straight line shock movement generating device belongs to dynamic mechanical field of measuring techniques.
Background technique
Ballistic motion is the important physical amount in Branch of Mechanics, show as acceleration, speed, displacement parameter change dramatically and
The system transients movement evoked, i.e., cause system to have a kind of effect of obvious momentum change in very brief time interval, is a kind of
The transient state energy of moment exchanges.Ballistic motion process is widely used in because of the advantages that its range of dynamic measurement is wide, and dynamic response is fast
The development process in the fields such as Aeronautics and Astronautics, weapons, ship, military engineering, traffic, physical prospecting and weaponry, electric and electronic product
In, for evaluating the material structure characteristic of product, safety, anti-fight and the performance indicators such as lethal.
Ballistic motion measurement also becomes mechanics metering because of its critical role in scientific and technological industry, relevant collimation technique
In important dynamic measuring profession.Ballistic motion calibration includes jerk acceleration transducer, velocity sensor, displacement sensor
Dynamic calibration.There is the impact generating device including drop hammer type, pendulum, gas big gun formula etc. in the country at present, for generating partly just
String acceleration pulse applies jerk acceleration transducer and calibrates.Device utilizes collision principle, directly hits and accelerates equipped with impact
The anvil body for spending sensor applies impact acceleration pulse to acceleration transducer.And Sensor of Impactive Velocity and impact displacement pass
Sensor there is no impact generating device, can apply calibration motion-activated signal to it.Jerk acceleration transducer calibration
Ballistic motion pulse is mostly approximate semisinusoidal impact acceleration pulse, and acceleration pulse waveform is as shown in Figure 4.
The sensor for being commonly used for measurement impact velocity has laser speed sensor, bracing wire/rod-pulling type velocity sensor etc., uses
The sensor for making measurement displacement includes: laser displacement sensor, bracing wire/rod-pulling type displacement sensor etc..Velocity sensor and position
Displacement sensor is limited by its structure, can not directly bear to hit, therefore existing impact acceleration generating device is not used to speed
Spend the dynamic calibration of sensor and displacement sensor.
Summary of the invention
For the demand that existing acceleration transducer, velocity sensor and displacement sensor dynamic calibration excitation occur, originally
A kind of multipurpose ballistic motion generating device technical problems to be solved of disclosure of the invention are: providing a kind of ballistic motion and fill
It sets, calibration ballistic motion pumping signal can be provided for three kinds of shock transducers, meet and passed for acceleration transducer, speed
The demand of the dynamic calibration of sensor and displacement sensor.
The present invention is achieved by the following technical solutions:
A kind of multipurpose ballistic motion generating device disclosed by the invention uses horizontal occurring mode, including electric cylinders, straight line
Guide rail, 1# table top, air-bearing, 2# table top brake guide rail, damper, 2# table top, 3# table top, cushion, air bearing tup, 3# platform
Face is installed by guide rail, limited location fork.
Wherein: electric cylinders are the exciting units of generating device, for generating movement initial velocity；1# table top, 2# table top, 3# platform
Face, air bearing tup are moving component and corrected sensor installation pedestal；Linear guide, installation guide rail are movement guide mechanism；Resistance
Buddhist nun's device, braking guide rail, limited location fork, cushion are movement buffering and limiting mechanism.
A kind of multipurpose ballistic motion generating device disclosed by the invention includes two kinds of operating modes, and one kind is impact speed
Degree, impact displacement emergence pattern, another kind is impact acceleration emergence pattern.Corresponding above two operating mode combination is corresponding
Installation and control model provide ballistic motion excitation for impact acceleration, impact velocity, impact three kinds of sensors of displacement.
When working in impact velocity, impact displacement emergence pattern, i.e. instantaneous velocity, transient Displacements emergence pattern, connection
Relationship are as follows: be installed on fixed 3# table top by school velocity sensor or displacement sensor, the laser reflection face of corrected sensor or
Bracing wire, pull rod are fixed on 2# table top.1# table top is travelled forward by electric cylinders promotion and hits 2# table top, so that laser on 2# table top
Sensor on the pull rod of reflecting surface or sensor, bracing wire and 3# table top generates relative motion, obtains instantaneous velocity or transient state position
It moves, impact velocity, impact displacement movement excitation is provided.
When working in impact acceleration emergence pattern, connection relationship are as follows: be installed on by school jerk acceleration transducer solid
On air bearing tup on fixed 3# table top, 1# table top slides into electric cylinders rear.Electric cylinders push 2# table top to obtain movement velocity forward
Movement, and the air bearing tup on 3# table top is hit, so that acceleration transducer obtains impact acceleration motion-activated.Limited location fork is used
In the horizontal movement displacement of limitation air bearing tup.
Preferably, to reduce the speed loss in motion process, 1#, 2# table top are placed in straight line using air bearing bearing
On guide rail；Air-bearing is set inside 3# table top, it is mating for installing by school acceleration transducer with air bearing tup, guarantee to hit
When to neutral and inhibit transverse movement.
Preferably, being evenly equipped with the installation threaded hole of identical spacing on 1#, 2#, 3# table top, for laser reflection face, draw
Bar, bracing wire are positioned by the installation of school speed or displacement sensor, to guarantee the consistency of linear motion measurement direction.
Preferably, by adjusting electric cylinders movement velocity, the initial position of table top, the mass ratio between table top, cushion
Soft or hard degree and thickness, the impact acceleration, instantaneous velocity and transient state position of different magnitudes and various durations can be obtained
It moves.
A kind of working method of multipurpose ballistic motion generating device disclosed by the invention are as follows:
When working in impact velocity, impact displacement emergence pattern, i.e. instantaneous velocity, transient Displacements emergence pattern, 1# platform
Face is pushed by electric cylinders, is travelled forward with the acceleration of acquisition；When electric cylinders movement velocity reaches setting maximum value, electric cylinders start to subtract
Speed, while 1# table top and electric cylinders disengage, and move forward by inertia；Since minimum, 1# table top is lost to speed in air-bearing
It is travelled forward at the uniform velocity state.When 1# table top with obtain table top 7 speed impacts 2# after, 2# table top starts to travel forward, 2# platform
Sensor on face on the pull rod of the reflecting surface of laser or sensor, bracing wire and 3# table top generates relative motion, obtains transient state
Impact velocity or impact displacement, i.e. offer impact velocity, impact displacement movement excitation.The movement of 2# table top be damped device and its under
The 2# table top braking guide rail at end stops, and prevents the direct collision with 3# table top and air bearing tup so that by school velocity sensor or
Displacement sensor is not knocked influence and works normally.
When being in impact acceleration emergence pattern, 2# table top is pushed by electric cylinders, is travelled forward with the acceleration of acquisition；When
When electric cylinders movement velocity reaches setting maximum value, electric cylinders reduce speed now, while 2# table top and electric cylinders disengage, and continue forward by inertia
Movement；Since air-bearing is minimum to speed loss, 2# table top is travelled forward at the uniform velocity state.When 2# table top is with certain speed
Air bearing tup built-in in 3# table top is hit by cushion, and the jerk acceleration transducer on air bearing tup is motivated to be impacted
Acceleration movement excitation, while the horizontal movement displacement of limited location fork limitation air bearing tup to the right, to guarantee that air bearing tup will not take off
From its self-contained bearing.
The utility model has the advantages that
1, a kind of multipurpose ballistic motion generating device disclosed by the invention, including two kinds of operating modes, one kind are impact
Speed, impact displacement emergence pattern, another kind is impact acceleration emergence pattern；Corresponding above two operating mode combination corresponds to
Installation and control model, for impact acceleration, impact velocity, impact displacement three kinds of sensors provide ballistic motion excitation.
2, a kind of multipurpose ballistic motion generating device disclosed by the invention, passes through the guarantor of mechanical processing technique and precision
Card reduces the interference of linear motion measurement of the non-vertical direction movement to generation using air bearing tup and air-bearing；Another party
Face can be substantially reduced the frictional force of the direction of motion, avoid loss of the frictional force to generating device energy, improve pumping signal weight
Renaturation.
3, a kind of multipurpose ballistic motion generating device disclosed by the invention, 1#, 2# table top use the bearing of air bearing branch
In in linear guide；Air-bearing is set inside 3# table top, it is mating for installing by school acceleration transducer with air bearing tup, it protects
When card is hit to neutral and inhibit transverse movement.It is evenly equipped with the installation threaded hole of identical spacing on 1#, 2#, 3# table top, is used for
Laser reflection face, pull rod, bracing wire, the installation positioning by school speed or displacement sensor, to guarantee linear motion measurement direction
Consistency.
4, a kind of multipurpose ballistic motion generating device disclosed by the invention is sent out when working in impact velocity, impacting displacement
Raw mode, the movement of 2# table top is damped device and its 2# table top braking guide rail of lower end stops, and prevents to hammer into shape with 3# table top and air bearing
The direct collision of head works normally so that not being knocked influence by school velocity sensor or displacement sensor；Add when in impact
When speed emergence pattern, limited location fork limits the horizontal movement displacement of air bearing tup to the right, to guarantee air bearing tup without departing from it
Self-contained bearing.
5, a kind of multipurpose ballistic motion generating device disclosed by the invention, by adjusting electric cylinders speed, table top start bit
Set, table top quality, cushion, realize to movement velocity, acceleration, displacement amplitude multi-faceted adjusting.
6, a kind of multipurpose ballistic motion generating device disclosed by the invention, also with structure is simple, cost is relatively low, installation
The advantages of registration.
Detailed description of the invention
Fig. 1 is the overall structure diagram of apparatus of the present invention；
Fig. 2 is the instantaneous velocity of 2# table top and transient Displacements curve in specific embodiment；
Fig. 3 is the impact acceleration measured curve in specific embodiment on air bearing tup 8；
Fig. 4 is semisinusoidal impact acceleration pulse diagram in background technique.
Label declaration: 1- electric cylinders, 2- linear guide, 3-1# table top, 4- air-bearing, 5-2# table top braking guide rail, 6- resistance
Buddhist nun's device, 7-2# table top, 8-3# table top, 9- cushion, 10- air bearing tup, 11-3# table top install guide rail, 12- limited location fork.
Specific embodiment
Objects and advantages in order to better illustrate the present invention with reference to the accompanying drawing do further summary of the invention with example
Explanation.
Embodiment 1:
As shown in attached drawing Fig. 1, a kind of horizontal generation side of multipurpose ballistic motion generating device use disclosed in the present embodiment
Formula, including electric cylinders 1, linear guide 2,1# table top 3, air-bearing 4,2# table top brake guide rail 5, damper 6,2# table top 7,3# platform
Face 8, cushion 9, air bearing tup 10,3# table top install guide rail 11, limited location fork 12.
It is divided into two kinds, one kind is impact velocity, impact displacement emergence pattern, and another kind is impact acceleration emergence pattern.
Corresponding above two operating mode combines corresponding installation and control model, is impact acceleration, impact velocity, impact displacement three
Kind sensor provides ballistic motion excitation.
When being in instantaneous velocity, transient Displacements emergence pattern, 1# table top 3 and 2# table top 7 pass through air-bearing 4 when work
It is mounted in linear guide 2,3# table top 8 is installed on 3# table top installation guide rail 11, by school velocity sensor or displacement sensor
It is installed on the installation threaded hole of fixed 8 upper end of 3# table top；For laser speed/displacement sensor, laser reflection face is consolidated
It is scheduled on the installation threaded hole on 2# table top 7, for bracing wire, pull rod speed/displacement sensor, pull rod or bracing wire is fixed on 2#
On installation threaded hole on table top 7.Motion process are as follows: 1# table top 3 is pushed by electric cylinders 1, is travelled forward with certain acceleration；When
When 1 movement velocity of electric cylinders reaches setting maximum value, electric cylinders 1 reduce speed now, while 1# table top 3 and electric cylinders 1 disengage, and continue by inertia
It travels forward；Since air-bearing 4 is minimum to speed loss, 1# table top 3 is almost travelled forward at the uniform velocity state.When 1# table top
After 3 with certain speed impacts 2# table top 7,2# table top 7 starts to travel forward, the reflecting surface or sensor of laser on 2# table top 7
Pull rod, the sensor on bracing wire and 3# table top 8 generate relative motion, obtain the impact velocity or impact displacement of transient state.2# platform
The 2# table top braking guide rail 5 that the movement in face 7 is damped device 6 and its lower end stops, and prevents straight with 3# table top 8 and air bearing tup 10
Collision is connect, is worked normally so that not being knocked influence by school velocity sensor or displacement sensor.
When being in impact acceleration emergence pattern, 1# table top 3 and 2# table top 7 are mounted on by air-bearing 4 when work
In linear guide 2,3# table top 8 is installed on 3# table top installation guide rail 11.3# table top 8 is fixed on by school jerk acceleration transducer
In built-in air bearing tup 10 right end.1# table top 3 is slid into the right generating device right end, is placed in 1 rear of electric cylinders；3# platform
Face 8 is slided to the right, is led so that the right side of built-in air bearing tup 10 exceeds 6 left end of damper and is fixed on the installation of 3# table top
On rail 11.Motion process are as follows: 2# table top 7 is pushed by electric cylinders 1, is travelled forward with certain acceleration；When 1 movement velocity of electric cylinders reaches
To when setting maximum value, electric cylinders 1 reduce speed now, while 2# table top 7 and electric cylinders 1 disengage, and move forward by inertia；Due to gas
Floating axle holds that the loss of 4 pairs of speed is minimum, and 2# table top 7 is almost travelled forward at the uniform velocity state.When 2# table top 7 is logical with certain speed
It crosses cushion 9 and hits air bearing tup 10 built-in in 3# table top 8, the jerk acceleration transducer on air bearing tup 10 is motivated to obtain
Impact acceleration motion-activated, while limited location fork 12 limits the horizontal movement displacement of air bearing tup 10 to the right, to guarantee that air bearing is hammered into shape
First 10 without departing from its self-contained bearing.
For generating the instantaneous velocity of about 2ms, 1# table top 3,2# table top 7 are 200mm × 500mm, and 3# table top 8 is about
200mm×650mm.1# table top 3 is pushed by electric cylinders 1, and 1 movement velocity of electric cylinders at least needs to reach 2m/s, when electric cylinders 1 move 0.5m
Afterwards, when speed reaches 2m/s, electric cylinders 1 reduce speed now, while 1# table top 3 and electric cylinders 1 disengage, and are almost transported forward at the uniform velocity state
Dynamic about 4.5m hits 2# table top 7 by cushion 9, and excitation 2# table top 7 obtains instantaneous velocity.
Fig. 2-a is the instantaneous velocity curve of 2# table top 7, and Fig. 2-b is the transient Displacements curve of 2# table top 7.
To generate 300m/s2, 11ms impact acceleration pulse for, 2# table top 7 be about 200mm × 500mm, 3# table top
8 about 200mm × 650mm, air bearing tup 10 are diameter 50mm, the stainless steel material cylindrical body of length 200mm.Cushion 9 is
Diameter 50mm, the rubber pad of thickness 25mm.2# table top 7 is pushed by electric cylinders 1, and 1 movement velocity of electric cylinders at least needs to reach 2m/s, works as electricity
After cylinder 1 moves 0.5m, when speed reaches 2m/s, electric cylinders 1 reduce speed now, while 2# table top 7 and electric cylinders 1 disengage, almost with even
Fast state travels forward about 5m, and air bearing tup 10 built-in in 3# table top 8 is hit by cushion 9, can motivate air bearing tup 10
On jerk acceleration transducer obtain 310m/s2, 10.7ms impact acceleration pulse.
Fig. 3 is the impact acceleration pulse curve surveying air bearing tup 10 and generating.
Above-described specific descriptions have carried out further specifically the purpose of invention, technical scheme and beneficial effects
It is bright, it should be understood that the above is only a specific embodiment of the present invention, the protection model being not intended to limit the present invention
It encloses, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the present invention
Protection scope within.
Claims (6)
1. a kind of multipurpose ballistic motion generating device, it is characterised in that: including electric cylinders (1), linear guide (2), 1# table top
(3), air-bearing (4), 2# table top brake guide rail (5), damper (6), 2# table top (7), 3# table top (8), cushion (9), gas
Floating tup (10), 3# table top install guide rail (11), limited location fork (12)；
Electric cylinders (1) are the exciting units of generating device, for generating movement initial velocity；1# table top (3), 2# table top (7), 3# table top
(8), air bearing tup (10) is moving component and corrected sensor installation pedestal；Linear guide (2), installation guide rail are motion guide
Mechanism；Damper (6), 2# table top braking guide rail (5), limited location fork (12), cushion (9) are movement buffering and limiting mechanism.
2. a kind of multipurpose ballistic motion generating device as described in claim 1, it is characterised in that: including two kinds of Working moulds
Formula, one kind are impact velocity, impact displacement emergence pattern, and another kind is impact acceleration emergence pattern；Corresponding above two work
Operation mode combines corresponding installation and control model, provides punching for impact acceleration, impact velocity, impact three kinds of sensors of displacement
Hit motion-activated；
When working in impact velocity, impact displacement emergence pattern, i.e. instantaneous velocity, transient Displacements emergence pattern, connection relationship
Are as follows: fixed 3# table top (8), the laser reflection face or drawing of corrected sensor are installed on by school velocity sensor or displacement sensor
Line, pull rod are fixed on 2# table top (7)；1# table top (3) is travelling forward and is hitting 2# table top (7), so that laser on 2# table top (7)
Reflecting surface or the pull rod of sensor, bracing wire and 3# table top (8) on sensor generate relative motion, obtain instantaneous velocity or wink
State displacement provides impact velocity, impact displacement movement excitation；
When working in impact acceleration emergence pattern, connection relationship are as follows: be installed on by school jerk acceleration transducer fixed
On air bearing tup (10) on 3# table top (8), 1# table top (3) slides into electric cylinders (1) rear；Electric cylinders (1) push 2# table top (7) to obtain
It obtains movement velocity to travel forward, and hits the air bearing tup (10) on 3# table top (8), so that acceleration transducer obtains impact and adds
Speed motion-activated；Limited location fork (12) is used to limit the horizontal movement displacement of air bearing tup (10).
3. a kind of multipurpose ballistic motion generating device as claimed in claim 1 or 2, it is characterised in that: be moved through to reduce
Speed loss in journey, 1#, 2# table top (7) are placed on linear guide (2) using air bearing bearing；It is set inside 3# table top (8)
Set air-bearing (4), it is mating for installing by school acceleration transducer with air bearing tup (10), when guaranteeing to hit to neutral and
Inhibit transverse movement.
4. a kind of multipurpose ballistic motion generating device as claimed in claim 1 or 2, it is characterised in that: 1#, 2#, 3# table top
(8) the installation threaded hole of identical spacing is evenly equipped on, for laser reflection face, pull rod, bracing wire, by school speed or displacement sensor
Installation positioning, with guarantee linear motion measurement direction consistency.
5. a kind of multipurpose ballistic motion generating device as claimed in claim 1 or 2, it is characterised in that: by adjusting electric cylinders
(1) movement velocity, the initial position of table top, the mass ratio between table top, the soft or hard degree and thickness of cushion (9) can obtain
Obtain impact acceleration, instantaneous velocity and the transient Displacements of different magnitudes and various durations.
6. a kind of multipurpose ballistic motion generating device as claimed in claim 1 or 2, it is characterised in that: impacted when working in
When speed, impact displacement emergence pattern, i.e. instantaneous velocity, transient Displacements emergence pattern, 1# table top (3) is pushed by electric cylinders (1), with
The acceleration of acquisition travels forward；When electric cylinders (1) movement velocity reaches setting maximum value, electric cylinders (1) reduce speed now, while 1#
Table top (3) and electric cylinders (1) disengage, and move forward by inertia；Since minimum, 1# table top is lost to speed in air-bearing (4)
(3) it is travelled forward at the uniform velocity state；Behind speed impacts 2# table top (7) 7 of the 1# table top (3) with acquisition, 2# table top (7) start to
Preceding movement, the pull rod of the reflecting surface of laser or sensor, bracing wire and the sensor on 3# table top (8) generate phase on 2# table top (7)
To movement, the impact velocity or impact displacement of transient state, i.e. offer impact velocity, impact displacement movement excitation are obtained；2# table top (7)
Movement be damped 2# table top (7) braking guide rail (5) of device (6) and its lower end and stop, preventing and 3# table top (8) and air bearing tup
(10) direct collision works normally so that not being knocked influence by school velocity sensor or displacement sensor；
When being in impact acceleration emergence pattern, 2# table top (7) is pushed by electric cylinders (1), is travelled forward with the acceleration of acquisition；
When electric cylinders (1) movement velocity reaches setting maximum value, electric cylinders (1) reduce speed now, while 2# table top (7) and electric cylinders (1) disengage,
It moves forward by inertia；Since air-bearing (4) is minimum to speed loss, 2# table top (7) is travelled forward at the uniform velocity state；
When 2# table top (7) hits air bearing tup (10) built-in in 3# table top (8), energized gas by cushion (9) with certain speed
Jerk acceleration transducer on floating tup (10) obtains impact acceleration motion-activated, while limited location fork (12) limitation air bearing hammer
The horizontal movement displacement of head (10) to the right, to guarantee air bearing tup (10) without departing from its self-contained bearing.
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| CN201811462304.4A CN109341743A (en) | 2018-12-03 | 2018-12-03 | A kind of multipurpose ballistic motion generating device |
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| CN201811462304.4A CN109341743A (en) | 2018-12-03 | 2018-12-03 | A kind of multipurpose ballistic motion generating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115140506A (en) * | 2021-03-31 | 2022-10-04 | 宝山钢铁股份有限公司 | Trolley capable of bearing impact load and novel method for matching track |
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| CN207197480U (en) * | 2017-10-11 | 2018-04-06 | 重庆建设工业(集团)有限责任公司 | A kind of calibrating device for displacement sensor based on air floating platform |
| CN207881664U (en) * | 2018-02-12 | 2018-09-18 | 长春莫尔电子有限公司 | A kind of intelligent calibrating device of draw-wire displacement sensor |
| CN207963779U (en) * | 2018-02-12 | 2018-10-12 | 苏州市计量测试研究所 | A kind of laser displacement sensor calibrating installation |
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| SU1758502A1 (en) * | 1989-05-29 | 1992-08-30 | Омский политехнический институт | Device for detecting hollows and defects in materials |
| CN104062465A (en) * | 2013-10-08 | 2014-09-24 | 中国计量科学研究院 | Accelerometer calibration system and calibration method within low g value range |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115140506A (en) * | 2021-03-31 | 2022-10-04 | 宝山钢铁股份有限公司 | Trolley capable of bearing impact load and novel method for matching track |
| CN115140506B (en) * | 2021-03-31 | 2024-01-09 | 宝山钢铁股份有限公司 | Method for matching track trolley to bear impact load |
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Application publication date: 20190215 |
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